Skip to content

Missing moe_router_dtype causes unexpected downcast in ModelOpt example - #5810

Merged
cspades merged 2 commits into
NVIDIA:mainfrom
jinhangchoi:jinhangc/ptq-moe-router-dtype
Jul 15, 2026
Merged

Missing moe_router_dtype causes unexpected downcast in ModelOpt example#5810
cspades merged 2 commits into
NVIDIA:mainfrom
jinhangchoi:jinhangc/ptq-moe-router-dtype

Conversation

@jinhangchoi

Copy link
Copy Markdown
Contributor
  • I, the PR author, have personally reviewed every line of this PR.

What does this PR do?

This PR updates HF-to-Mcore conversion script to respect moe_router_dtype passed by model args in the course of quantization process.

⚠️ For major changes (either in lines of code or in its impact), please make sure to first share a design doc with the team. If you're unsure what's the best way to do so, contact @NVIDIA/mcore-oncall.

Issue tracking

For PRs from open-source community contributors:

  • New features: a linked issue is required. Please open a feature request and reference it here before submitting the PR.
  • Small updates (bug fixes, minor improvements): a linked issue is recommended and will accelerate the PR review process.

Linked issue:

Contribution process

Pre-checks

  • I have added relevant unit tests
  • I have added relevant functional tests
  • I have added proper typing to my code Typing guidelines
  • I have added relevant documentation
  • I have run the autoformatter.sh on my PR

Code review

Feel free to message or comment @NVIDIA/mcore-oncall to help accelerate your merge into main. The less complex your PR is, the faster it will be approved and merged!

All PRs start as draft. If you open a non-draft PR, it will be automatically converted to draft.

Step 1: Mark PR as "Ready for Review"

  1. When your PR is ready, click Ready for Review.
  2. An oncall reviewer is auto-assigned and expert reviewers are notified based on your changes.
    • Some PRs may jump straight to step 2. This is determined by .github/CODEOWNERS.

⚠️ Only mark as ready once merge-conflicts are resolved and the CI is passing.
Final Review might get declined if these requirements are not fulfilled.

Step 2: Final Review

For PRs that change megatron/core, once all expert reviewers have approved, the Final Review label is applied automatically and final reviewers are assigned.

For PRs outside megatron/core, this step is skipped.

Step 3: Approved

Once all required reviewers have approved, the Approved label is applied automatically.

Merge

Any member of mcore-engineers will be able to merge your PR.

Signed-off-by: Jinhang Choi <jinhangc@nvidia.com>
@copy-pr-bot

copy-pr-bot Bot commented Jul 14, 2026

Copy link
Copy Markdown

This pull request requires additional validation before any workflows can run on NVIDIA's runners.

Pull request vetters can view their responsibilities here.

Contributors can view more details about this message here.

@svcnvidia-nemo-ci
svcnvidia-nemo-ci marked this pull request as draft July 14, 2026 18:46
@github-actions

Copy link
Copy Markdown
Contributor

This PR has been automatically converted to draft because all PRs must start as drafts.

When you are ready for review, click Ready for Review to begin the review process. This will:

  1. Add the oncall reviewer (optional reviewer)
  2. Add required review teams based on your changes

See the contribution guide for more details.

@jinhangchoi
jinhangchoi marked this pull request as ready for review July 14, 2026 18:48
@svcnvidia-nemo-ci
svcnvidia-nemo-ci requested a review from a team July 14, 2026 18:48
@jenchen13

Copy link
Copy Markdown
Contributor

/ok to test 63f7d83

@cspades

cspades commented Jul 15, 2026

Copy link
Copy Markdown
Member

/ok to test 63f7d83

@svcnvidia-nemo-ci

Copy link
Copy Markdown
Contributor

🔄 Merge queue validation started!

You can track the progress here: https://github.com/NVIDIA/Megatron-LM/actions/runs/29434211204

Merged via the queue into NVIDIA:main with commit ccdfa7d Jul 15, 2026
182 checks passed
@jinhangchoi
jinhangchoi deleted the jinhangc/ptq-moe-router-dtype branch July 17, 2026 03:06
chochowski pushed a commit to chochowski/Megatron-LM that referenced this pull request Jul 20, 2026
…le (NVIDIA#5810)

Signed-off-by: Jinhang Choi <jinhangc@nvidia.com>
Co-authored-by: Cory Ye <44509866+cspades@users.noreply.github.com>
Signed-off-by: mchochowski <mchochowski@nvidia.com>
terminator123 pushed a commit to 021ai/Megatron-LM that referenced this pull request Aug 3, 2026
…le (NVIDIA#5810)

Signed-off-by: Jinhang Choi <jinhangc@nvidia.com>
Co-authored-by: Cory Ye <44509866+cspades@users.noreply.github.com>
svcnvidia-nemo-ci pushed a commit to dimapihtar/Megatron-LM that referenced this pull request Aug 4, 2026
…le (NVIDIA#5810)

Signed-off-by: Jinhang Choi <jinhangc@nvidia.com>
Co-authored-by: Cory Ye <44509866+cspades@users.noreply.github.com>
Signed-off-by: Dmytro Pykhtar <dpykhtar@nvidia.com>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants